Bugzilla

Here's a case that likes to reproduce on firefox linux nightly, noting that it seems like the problem actually triggers after initial layout when I scroll the window.

Here's a profile that I gathered from the attached HTML file using "Firefox Platform" profiling settings AFTER the process hosting the file became unresponsive and hitting "capture" after what seemed like "long enough":  https://share.firefox.dev/2V38Y2G

Here's a case that likes to reproduce on firefox linux nightly, noting that it seems like the problem actually triggers after initial layout when I scroll the window.

Here's a profile that I gathered from the attached HTML file using "Firefox Platform" profiling settings AFTER the process hosting the file became unresponsive and hitting "capture" after what seemed like "long enough":  https://share.firefox.dev/2V38Y2G

Edit: Note that the test file contains an external script reference to "simple.bundle.js" in the header that is moot and can be ignored.  (I inlined the relevant parts of the script later in the file, along with the data that generates the dynamic HTML which isn't really all that complex.)